On Jul 29, 2008, at 10:57 AM, Nathaniel Gottlieb-Graham wrote:
Why do externs seem to have to be NSStrings? Also, is this even the right way to go about having a read/write global NSMutableDictionary? If not, how would I do this?
The variables cannot point to anything that isn't a constant. @"foo bar" is a constant string and is handled differently by the compiler/ linker. [[NSMutableDictionary dictionary] retain] is not a constant and, thus, cannot be used to directly initialize a variable at time of declaration within a global scope.
Instead, you need to initialize the variables as early as needed within your application.
This could be done in main(). Or it could be done in the +initialize for a class.
Or you could annotate a function as a constructor. It will run before main().
static void __InitializeGlobalStuffMan(void) __attribute__ ((constructor));
void __InitializeGlobalStuffMan(void) {
myGlobalDictionary = [[NSMutableDictionary alloc] init];
....
}
b.bum
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